A kind of extraction method of coir fiber

A coconut shell fiber and extraction method technology, which is applied in the field of coconut shell fiber extraction, can solve the problems of limited use, thick and uneven fibers, and achieve the effects of reducing the residual fat rate, fiber thickness, and uniform length

Active Publication Date: 2020-08-14
安徽九天印务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional process of extracting and processing coconut husk fibers makes the fibers thick, heavy, and uneven, resulting in very limited end uses. A large number of coconut husks are directly treated as garbage every year.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The extraction method of coir fiber described in the present embodiment may further comprise the steps:

[0027] (1) Crush the coconut shell to obtain pieces of coconut shell, the length of which is 5cm, and set aside;

[0028] (2) Add deionized water and lipase in the tank, the amount of lipase added is 0.6% of the quality of deionized water, after mixing evenly, heat to 45°C to keep constant temperature, put the coconut shell fragments into the tank and soak for 2 hours post filter;

[0029] (3) Add sodium hydroxide solution with a concentration of 0.5% into the cooking tank, put the coconut shell filtered in step (2), and heat and pressurize. The heating temperature is controlled between 105°C and the pressurized pressure is controlled at 14.7 MPa, cook for 1 hour, take out and rinse with water for 10 minutes after cooking;

[0030] (4) The coconut shell washed in step (3) is dissected into thick fibers by a silk machine, and then rinsed with water for 10-15 minute...

Embodiment 2

[0034] The extraction method of coir fiber described in the present embodiment may further comprise the steps:

[0035] (1) Crushing the coconut shell to obtain pieces of coconut shell, the length of which is 6m, for later use;

[0036] (2) Add deionized water and lipase in the tank, the amount of lipase added is 0.7% of the quality of deionized water, after mixing evenly, heat to 45°C to keep constant temperature, put coconut shell pieces into the tank and soak for 2.5 filter after h;

[0037] (3) Add sodium hydroxide solution with a concentration of 0.7% into the cooking tank, put the coconut shell filtered in step (2), and heat and pressurize. The heating temperature is controlled between 112°C and the pressurized pressure is controlled at 16.8 MPa, cook for 1.2h, take out after cooking and rinse with water for 13min;

[0038] (4) The coconut shell washed in step (3) is dissected into thick fibers by a silk machine, and then rinsed with water for 13 minutes;

[0039] (5)...

Embodiment 3

[0042] The extraction method of coir fiber described in the present embodiment may further comprise the steps:

[0043] (1) Crush the coconut shell to obtain pieces of coconut shell, the length of which is 7cm, and set aside;

[0044] (2) Add deionized water and lipase into the tank. The amount of lipase added is 0.8% of the quality of deionized water. After mixing evenly, heat to 45°C to maintain a constant temperature, and put coconut shell fragments into the tank to soak for 3 hours post filter;

[0045] (3) Add sodium hydroxide solution with a concentration of 1% into the cooking tank, put the coconut shell filtered in step (2), and heat and pressurize. The heating temperature is controlled between 120°C and the pressurized pressure is controlled at 18.3 MPa, cook for 1.5h, take out after cooking and rinse with water for 15min;

[0046] (4) Dissect the coconut husk after washing in step (3) into coarse fibers with a silk forming machine, and then rinse with water for 15 ...

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Abstract

The invention discloses a method for extracting coconut fiber. The method comprises the following steps: crushing coconut shell; adding deionized water and lipase into a cylinder, conducting uniform mixing, heating the mixture to 45 DEG C, and soaking the coconut shell into a cylinder for 2-3 h after soaking; adding sodium hydroxide solution in a cooking tank, putting the filtered coconut shell into the cooking tank, heating and pressurizing the mixture, cooking the mixture for 1-1.5 h, taking out the cooked coconut shell, and rinsing off the cooked coconut shell with water for 10-15 min; dissecting the rinsed coconut shell in the step (3) into crude fiber by a filament forming machine, and then rinsing the fiber with water for 10-15 minutes; mixing the deionized water with chlorine dioxide and sodium carbonate uniformly, and then the rinsed crude fiber in the step (4); conducting soaking for 30 to 40 minutes, taking out the fiber, and rinsing the fiber with hot water for 15 to 20 minutes; and dehydrating the dried fiber in the step (5), and then loosening the fiber with a carding machine to obtain the coconut fiber. The coconut shell fiber extracted by the method for extracting the coconut fiber of the invention has uniformity, less impurities, low residual fat ratio, and guaranteed quality.

Description

technical field [0001] The invention relates to the field of textiles, in particular to a method for extracting coconut shell fibers. Background technique [0002] Coconut shell is the endocarp of palm plant coconut, coconut shell contains ash 0.61%, lignin 36.51%, cellulose 53.06%, pentosan 29.27% ​​(total). It can cure wind, cold, heat and so on. For plant morphology, see Coconut Strips. Carve some patterns and characters on the coconut shell, and even make doll heads, all kinds of bird rain folk art. Coconut husk contains a lot of fiber, and coconut husk fiber can be used to produce rugs, mats, ropes and filter cloths, etc.; secondly, because coconut husk fiber is degradable and will not cause harm to the ecological environment, it can be used in Processing of nonwoven fabrics for soil control; in addition, coir fiber has strong toughness and can be used as a reinforcing base for composite materials instead of synthetic fibers. However, the traditional process of extr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21B1/06D21B1/12D21C5/00
CPCD21B1/06D21B1/12D21C5/005
Inventor 胡长青
Owner 安徽九天印务有限公司
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